Bob Lazar came out as a whistleblower in the late 1980's with claims that he was hired to reverse engineer an alien spacecraft at a secret testing site called S-4, located just south of Area 51.  He says that the specific craft he studied was fueled by non-Earthly antigravity matter called Element 115. A series of events led him to go public with his story, which he was equally applauded and criticized for at the time. Now, 30 years later, none of his claims have been disproved. On the contrary, there has been small moments of vindication for him with certain details of his story. Is he just a conspiracy theorist or a true whistleblower with information that the public deserves to know?